Solar energy paper index
Performance and mechanism of biobased-supported conjugated polymer donor with dual small-molecule acceptors
One-line summary
A solar energy research paper on Performance and mechanism of biobased-supported conjugated polymer donor with dual small-molecule acceptors.
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Chinese explanation / 中文解读
中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。
Original abstract
Sodium pentachlorophenate (PCP-Na) is a persistent and toxic chlorinated pollutant frequently detected in industrial wastewater. Herein, a fully organic photocatalytic system was developed by integrating coconut shell carbon with organic photovoltaic active-layer materials. A ternary donor-acceptor-acceptor heterojunction (PM6:Y6:IEICO-4F) was constructed to enhance visible-light harvesting and interfacial charge separation. The cascaded energy-level alignment and type-II heterojunction structure broaden light absorption (500-900 nm), suppress carrier recombination, and facilitate charge transfer. Under 300 W xenon lamp irradiation, the optimal photocatalyst achieved 99% degradation of 50 mg/L PCP-Na, within 40 min, and exhibited excellent cycling stability. Superoxide radicals (·O<sub>2</sub><sup>-</sup>) and photogenerated holes (h<sup>+</sup>) are identified as the dominant reactive species, driving stepwise dechlorination and ring-opening processes. This work reveals that the biochar-supported ternary D-A/A type-II heterojunction enables exceptional visible-light utilization and efficient carrier separation, offering a novel all-organic platform for remediating persistent chlorinated pollutants.
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